gitweb: Add git_merge sub
[git/gsoc2010-gitweb.git] / builtin / config.c
blobf3d1660d023f7893373436617a9f729ce1d60f4d
1 #include "builtin.h"
2 #include "cache.h"
3 #include "color.h"
4 #include "parse-options.h"
6 static const char *const builtin_config_usage[] = {
7 "git config [options]",
8 NULL
9 };
11 static char *key;
12 static regex_t *key_regexp;
13 static regex_t *regexp;
14 static int show_keys;
15 static int use_key_regexp;
16 static int do_all;
17 static int do_not_match;
18 static int seen;
19 static char delim = '=';
20 static char key_delim = ' ';
21 static char term = '\n';
23 static int use_global_config, use_system_config;
24 static const char *given_config_file;
25 static int actions, types;
26 static const char *get_color_slot, *get_colorbool_slot;
27 static int end_null;
29 #define ACTION_GET (1<<0)
30 #define ACTION_GET_ALL (1<<1)
31 #define ACTION_GET_REGEXP (1<<2)
32 #define ACTION_REPLACE_ALL (1<<3)
33 #define ACTION_ADD (1<<4)
34 #define ACTION_UNSET (1<<5)
35 #define ACTION_UNSET_ALL (1<<6)
36 #define ACTION_RENAME_SECTION (1<<7)
37 #define ACTION_REMOVE_SECTION (1<<8)
38 #define ACTION_LIST (1<<9)
39 #define ACTION_EDIT (1<<10)
40 #define ACTION_SET (1<<11)
41 #define ACTION_SET_ALL (1<<12)
42 #define ACTION_GET_COLOR (1<<13)
43 #define ACTION_GET_COLORBOOL (1<<14)
45 #define TYPE_BOOL (1<<0)
46 #define TYPE_INT (1<<1)
47 #define TYPE_BOOL_OR_INT (1<<2)
48 #define TYPE_PATH (1<<3)
50 static struct option builtin_config_options[] = {
51 OPT_GROUP("Config file location"),
52 OPT_BOOLEAN(0, "global", &use_global_config, "use global config file"),
53 OPT_BOOLEAN(0, "system", &use_system_config, "use system config file"),
54 OPT_STRING('f', "file", &given_config_file, "FILE", "use given config file"),
55 OPT_GROUP("Action"),
56 OPT_BIT(0, "get", &actions, "get value: name [value-regex]", ACTION_GET),
57 OPT_BIT(0, "get-all", &actions, "get all values: key [value-regex]", ACTION_GET_ALL),
58 OPT_BIT(0, "get-regexp", &actions, "get values for regexp: name-regex [value-regex]", ACTION_GET_REGEXP),
59 OPT_BIT(0, "replace-all", &actions, "replace all matching variables: name value [value_regex]", ACTION_REPLACE_ALL),
60 OPT_BIT(0, "add", &actions, "adds a new variable: name value", ACTION_ADD),
61 OPT_BIT(0, "unset", &actions, "removes a variable: name [value-regex]", ACTION_UNSET),
62 OPT_BIT(0, "unset-all", &actions, "removes all matches: name [value-regex]", ACTION_UNSET_ALL),
63 OPT_BIT(0, "rename-section", &actions, "rename section: old-name new-name", ACTION_RENAME_SECTION),
64 OPT_BIT(0, "remove-section", &actions, "remove a section: name", ACTION_REMOVE_SECTION),
65 OPT_BIT('l', "list", &actions, "list all", ACTION_LIST),
66 OPT_BIT('e', "edit", &actions, "opens an editor", ACTION_EDIT),
67 OPT_STRING(0, "get-color", &get_color_slot, "slot", "find the color configured: [default]"),
68 OPT_STRING(0, "get-colorbool", &get_colorbool_slot, "slot", "find the color setting: [stdout-is-tty]"),
69 OPT_GROUP("Type"),
70 OPT_BIT(0, "bool", &types, "value is \"true\" or \"false\"", TYPE_BOOL),
71 OPT_BIT(0, "int", &types, "value is decimal number", TYPE_INT),
72 OPT_BIT(0, "bool-or-int", &types, "value is --bool or --int", TYPE_BOOL_OR_INT),
73 OPT_BIT(0, "path", &types, "value is a path (file or directory name)", TYPE_PATH),
74 OPT_GROUP("Other"),
75 OPT_BOOLEAN('z', "null", &end_null, "terminate values with NUL byte"),
76 OPT_END(),
79 static void check_argc(int argc, int min, int max) {
80 if (argc >= min && argc <= max)
81 return;
82 error("wrong number of arguments");
83 usage_with_options(builtin_config_usage, builtin_config_options);
86 static int show_all_config(const char *key_, const char *value_, void *cb)
88 if (value_)
89 printf("%s%c%s%c", key_, delim, value_, term);
90 else
91 printf("%s%c", key_, term);
92 return 0;
95 static int show_config(const char *key_, const char *value_, void *cb)
97 char value[256];
98 const char *vptr = value;
99 int must_free_vptr = 0;
100 int dup_error = 0;
102 if (!use_key_regexp && strcmp(key_, key))
103 return 0;
104 if (use_key_regexp && regexec(key_regexp, key_, 0, NULL, 0))
105 return 0;
106 if (regexp != NULL &&
107 (do_not_match ^ !!regexec(regexp, (value_?value_:""), 0, NULL, 0)))
108 return 0;
110 if (show_keys) {
111 if (value_)
112 printf("%s%c", key_, key_delim);
113 else
114 printf("%s", key_);
116 if (seen && !do_all)
117 dup_error = 1;
118 if (types == TYPE_INT)
119 sprintf(value, "%d", git_config_int(key_, value_?value_:""));
120 else if (types == TYPE_BOOL)
121 vptr = git_config_bool(key_, value_) ? "true" : "false";
122 else if (types == TYPE_BOOL_OR_INT) {
123 int is_bool, v;
124 v = git_config_bool_or_int(key_, value_, &is_bool);
125 if (is_bool)
126 vptr = v ? "true" : "false";
127 else
128 sprintf(value, "%d", v);
129 } else if (types == TYPE_PATH) {
130 git_config_pathname(&vptr, key_, value_);
131 must_free_vptr = 1;
133 else
134 vptr = value_?value_:"";
135 seen++;
136 if (dup_error) {
137 error("More than one value for the key %s: %s",
138 key_, vptr);
140 else
141 printf("%s%c", vptr, term);
142 if (must_free_vptr)
143 /* If vptr must be freed, it's a pointer to a
144 * dynamically allocated buffer, it's safe to cast to
145 * const.
147 free((char *)vptr);
149 return 0;
152 static int get_value(const char *key_, const char *regex_)
154 int ret = -1;
155 char *tl;
156 char *global = NULL, *repo_config = NULL;
157 const char *system_wide = NULL, *local;
159 local = config_exclusive_filename;
160 if (!local) {
161 const char *home = getenv("HOME");
162 local = repo_config = git_pathdup("config");
163 if (git_config_global() && home)
164 global = xstrdup(mkpath("%s/.gitconfig", home));
165 if (git_config_system())
166 system_wide = git_etc_gitconfig();
169 key = xstrdup(key_);
170 for (tl=key+strlen(key)-1; tl >= key && *tl != '.'; --tl)
171 *tl = tolower(*tl);
172 for (tl=key; *tl && *tl != '.'; ++tl)
173 *tl = tolower(*tl);
175 if (use_key_regexp) {
176 key_regexp = (regex_t*)xmalloc(sizeof(regex_t));
177 if (regcomp(key_regexp, key, REG_EXTENDED)) {
178 fprintf(stderr, "Invalid key pattern: %s\n", key_);
179 goto free_strings;
183 if (regex_) {
184 if (regex_[0] == '!') {
185 do_not_match = 1;
186 regex_++;
189 regexp = (regex_t*)xmalloc(sizeof(regex_t));
190 if (regcomp(regexp, regex_, REG_EXTENDED)) {
191 fprintf(stderr, "Invalid pattern: %s\n", regex_);
192 goto free_strings;
196 if (do_all && system_wide)
197 git_config_from_file(show_config, system_wide, NULL);
198 if (do_all && global)
199 git_config_from_file(show_config, global, NULL);
200 if (do_all)
201 git_config_from_file(show_config, local, NULL);
202 git_config_from_parameters(show_config, NULL);
203 if (!do_all && !seen)
204 git_config_from_file(show_config, local, NULL);
205 if (!do_all && !seen && global)
206 git_config_from_file(show_config, global, NULL);
207 if (!do_all && !seen && system_wide)
208 git_config_from_file(show_config, system_wide, NULL);
210 free(key);
211 if (regexp) {
212 regfree(regexp);
213 free(regexp);
216 if (do_all)
217 ret = !seen;
218 else
219 ret = (seen == 1) ? 0 : seen > 1 ? 2 : 1;
221 free_strings:
222 free(repo_config);
223 free(global);
224 return ret;
227 static char *normalize_value(const char *key, const char *value)
229 char *normalized;
231 if (!value)
232 return NULL;
234 if (types == 0 || types == TYPE_PATH)
236 * We don't do normalization for TYPE_PATH here: If
237 * the path is like ~/foobar/, we prefer to store
238 * "~/foobar/" in the config file, and to expand the ~
239 * when retrieving the value.
241 normalized = xstrdup(value);
242 else {
243 normalized = xmalloc(64);
244 if (types == TYPE_INT) {
245 int v = git_config_int(key, value);
246 sprintf(normalized, "%d", v);
248 else if (types == TYPE_BOOL)
249 sprintf(normalized, "%s",
250 git_config_bool(key, value) ? "true" : "false");
251 else if (types == TYPE_BOOL_OR_INT) {
252 int is_bool, v;
253 v = git_config_bool_or_int(key, value, &is_bool);
254 if (!is_bool)
255 sprintf(normalized, "%d", v);
256 else
257 sprintf(normalized, "%s", v ? "true" : "false");
261 return normalized;
264 static int get_color_found;
265 static const char *get_color_slot;
266 static const char *get_colorbool_slot;
267 static char parsed_color[COLOR_MAXLEN];
269 static int git_get_color_config(const char *var, const char *value, void *cb)
271 if (!strcmp(var, get_color_slot)) {
272 if (!value)
273 config_error_nonbool(var);
274 color_parse(value, var, parsed_color);
275 get_color_found = 1;
277 return 0;
280 static void get_color(const char *def_color)
282 get_color_found = 0;
283 parsed_color[0] = '\0';
284 git_config(git_get_color_config, NULL);
286 if (!get_color_found && def_color)
287 color_parse(def_color, "command line", parsed_color);
289 fputs(parsed_color, stdout);
292 static int stdout_is_tty;
293 static int get_colorbool_found;
294 static int get_diff_color_found;
295 static int git_get_colorbool_config(const char *var, const char *value,
296 void *cb)
298 if (!strcmp(var, get_colorbool_slot)) {
299 get_colorbool_found =
300 git_config_colorbool(var, value, stdout_is_tty);
302 if (!strcmp(var, "diff.color")) {
303 get_diff_color_found =
304 git_config_colorbool(var, value, stdout_is_tty);
306 if (!strcmp(var, "color.ui")) {
307 git_use_color_default = git_config_colorbool(var, value, stdout_is_tty);
308 return 0;
310 return 0;
313 static int get_colorbool(int print)
315 get_colorbool_found = -1;
316 get_diff_color_found = -1;
317 git_config(git_get_colorbool_config, NULL);
319 if (get_colorbool_found < 0) {
320 if (!strcmp(get_colorbool_slot, "color.diff"))
321 get_colorbool_found = get_diff_color_found;
322 if (get_colorbool_found < 0)
323 get_colorbool_found = git_use_color_default;
326 if (print) {
327 printf("%s\n", get_colorbool_found ? "true" : "false");
328 return 0;
329 } else
330 return get_colorbool_found ? 0 : 1;
333 int cmd_config(int argc, const char **argv, const char *unused_prefix)
335 int nongit;
336 char *value;
337 const char *prefix = setup_git_directory_gently(&nongit);
339 config_exclusive_filename = getenv(CONFIG_ENVIRONMENT);
341 argc = parse_options(argc, argv, prefix, builtin_config_options,
342 builtin_config_usage,
343 PARSE_OPT_STOP_AT_NON_OPTION);
345 if (use_global_config + use_system_config + !!given_config_file > 1) {
346 error("only one config file at a time.");
347 usage_with_options(builtin_config_usage, builtin_config_options);
350 if (use_global_config) {
351 char *home = getenv("HOME");
352 if (home) {
353 char *user_config = xstrdup(mkpath("%s/.gitconfig", home));
354 config_exclusive_filename = user_config;
355 } else {
356 die("$HOME not set");
359 else if (use_system_config)
360 config_exclusive_filename = git_etc_gitconfig();
361 else if (given_config_file) {
362 if (!is_absolute_path(given_config_file) && prefix)
363 config_exclusive_filename = prefix_filename(prefix,
364 strlen(prefix),
365 given_config_file);
366 else
367 config_exclusive_filename = given_config_file;
370 if (end_null) {
371 term = '\0';
372 delim = '\n';
373 key_delim = '\n';
376 if (HAS_MULTI_BITS(types)) {
377 error("only one type at a time.");
378 usage_with_options(builtin_config_usage, builtin_config_options);
381 if (get_color_slot)
382 actions |= ACTION_GET_COLOR;
383 if (get_colorbool_slot)
384 actions |= ACTION_GET_COLORBOOL;
386 if ((get_color_slot || get_colorbool_slot) && types) {
387 error("--get-color and variable type are incoherent");
388 usage_with_options(builtin_config_usage, builtin_config_options);
391 if (HAS_MULTI_BITS(actions)) {
392 error("only one action at a time.");
393 usage_with_options(builtin_config_usage, builtin_config_options);
395 if (actions == 0)
396 switch (argc) {
397 case 1: actions = ACTION_GET; break;
398 case 2: actions = ACTION_SET; break;
399 case 3: actions = ACTION_SET_ALL; break;
400 default:
401 usage_with_options(builtin_config_usage, builtin_config_options);
404 if (actions == ACTION_LIST) {
405 check_argc(argc, 0, 0);
406 if (git_config(show_all_config, NULL) < 0) {
407 if (config_exclusive_filename)
408 die_errno("unable to read config file '%s'",
409 config_exclusive_filename);
410 else
411 die("error processing config file(s)");
414 else if (actions == ACTION_EDIT) {
415 check_argc(argc, 0, 0);
416 if (!config_exclusive_filename && nongit)
417 die("not in a git directory");
418 git_config(git_default_config, NULL);
419 launch_editor(config_exclusive_filename ?
420 config_exclusive_filename : git_path("config"),
421 NULL, NULL);
423 else if (actions == ACTION_SET) {
424 check_argc(argc, 2, 2);
425 value = normalize_value(argv[0], argv[1]);
426 return git_config_set(argv[0], value);
428 else if (actions == ACTION_SET_ALL) {
429 check_argc(argc, 2, 3);
430 value = normalize_value(argv[0], argv[1]);
431 return git_config_set_multivar(argv[0], value, argv[2], 0);
433 else if (actions == ACTION_ADD) {
434 check_argc(argc, 2, 2);
435 value = normalize_value(argv[0], argv[1]);
436 return git_config_set_multivar(argv[0], value, "^$", 0);
438 else if (actions == ACTION_REPLACE_ALL) {
439 check_argc(argc, 2, 3);
440 value = normalize_value(argv[0], argv[1]);
441 return git_config_set_multivar(argv[0], value, argv[2], 1);
443 else if (actions == ACTION_GET) {
444 check_argc(argc, 1, 2);
445 return get_value(argv[0], argv[1]);
447 else if (actions == ACTION_GET_ALL) {
448 do_all = 1;
449 check_argc(argc, 1, 2);
450 return get_value(argv[0], argv[1]);
452 else if (actions == ACTION_GET_REGEXP) {
453 show_keys = 1;
454 use_key_regexp = 1;
455 do_all = 1;
456 check_argc(argc, 1, 2);
457 return get_value(argv[0], argv[1]);
459 else if (actions == ACTION_UNSET) {
460 check_argc(argc, 1, 2);
461 if (argc == 2)
462 return git_config_set_multivar(argv[0], NULL, argv[1], 0);
463 else
464 return git_config_set(argv[0], NULL);
466 else if (actions == ACTION_UNSET_ALL) {
467 check_argc(argc, 1, 2);
468 return git_config_set_multivar(argv[0], NULL, argv[1], 1);
470 else if (actions == ACTION_RENAME_SECTION) {
471 int ret;
472 check_argc(argc, 2, 2);
473 ret = git_config_rename_section(argv[0], argv[1]);
474 if (ret < 0)
475 return ret;
476 if (ret == 0)
477 die("No such section!");
479 else if (actions == ACTION_REMOVE_SECTION) {
480 int ret;
481 check_argc(argc, 1, 1);
482 ret = git_config_rename_section(argv[0], NULL);
483 if (ret < 0)
484 return ret;
485 if (ret == 0)
486 die("No such section!");
488 else if (actions == ACTION_GET_COLOR) {
489 get_color(argv[0]);
491 else if (actions == ACTION_GET_COLORBOOL) {
492 if (argc == 1)
493 stdout_is_tty = git_config_bool("command line", argv[0]);
494 else if (argc == 0)
495 stdout_is_tty = isatty(1);
496 return get_colorbool(argc != 0);
499 return 0;